Decimal: Difference between revisions

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| Odd limit 2 = (7-limit) 21 | Mistuning 2 = 35.3 | Complexity 2 = 10

}}

'''Decimal''' is an [[exotemperament]] in the [[dicot family]], [[semaphoresmic clan]], and [[jubilismic clan]] of [[regular temperament|temperaments]]. It is ~~also~~ the ~~prototypical fully~~ [[~~hemipyth~~]] temperament, ~~with approximations of~~ [[7/5]][[~]][[10/7]] at [[sqrt(2)]], [[7/4]]~[[12/7]] at [[sqrt(3)]], [[5/4]]~[[6/5]] at [[sqrt(3/2)]] ~~and~~ [[7/6]]~[[8/7~~]] at [[sqrt(4/3)~~]], ~~and~~ [[pergen]] (P8/2, P4/2), splitting all Pythagorean intervals.

'''Decimal''' is an [[exotemperament]] in the [[dicot family]], [[semaphoresmic clan]], and [[jubilismic clan]] of [[regular temperament|temperaments]]. It is a [[weak extension|weak]] [[extension]] of [[dicot]], the [[5-limit]] temperament tempering out [[25/24]], splitting the octave in two parts, each representing [[7/5]][[~]][[10/7]]. It is also the prototypical fully [[hemipyth]] temperament, with [[sqrt(2)]] representing 7/5~10/7, [[sqrt(3)]] representing [[7/4]]~[[12/7]], [[sqrt(3/2)]] representng [[5/4]]~[[6/5]], and [[sqrt(4/3)]] representing [[7/6]]~[[8/7]], with a [[pergen]] of (P8/2, P4/2), splitting all Pythagorean intervals in two.

More precisely, it is the [[7-limit]] temperament that [[tempering out|tempers out]] both [[25/24]], the classic chromatic semitone, and [[49/48]], the septimal diesis. These two intervals have a rather similar function separating close intervals and creating "major" and "minor" triads (either pental ones splitting the perfect fifth or septimal ones splitting the perfect fourth), and tempering them out allows 5/4~6/5 to be sqrt(3/2) a neutral third and 7/6~8/7 to be a sqrt(4/3) neutral semifourth. These can be equated (far more accurately) to [[11/9]] and [[15/13]] respectively, tempering out [[243/242]] and [[676/675]] and extending this temperament to the [[13-limit]]. Since {{nowrap|(25/24)/(49/48) {{=}} [[50/49]] }}, it also tempers that out, splitting the octave in two equal parts. As both the generator and period are half that of the diatonic scale, this means it forms mos scales of 4, 6, 10, 14, 24, 38, … tones.

@@ Line 11: / Line 11: @@
 | Odd limit 2 = (7-limit) 21 | Mistuning 2 = 35.3 | Complexity 2 = 10
 }}
-'''Decimal''' is an [[exotemperament]] in the [[dicot family]], [[semaphoresmic clan]], and [[jubilismic clan]] of [[regular temperament|temperaments]]. It is also the prototypical fully [[hemipyth]] temperament, with approximations of [[7/5]][[~]][[10/7]] at [[sqrt(2)]], [[7/4]]~[[12/7]] at [[sqrt(3)]], [[5/4]]~[[6/5]] at [[sqrt(3/2)]] and [[7/6]]~[[8/7]] at [[sqrt(4/3)]], and [[pergen]] (P8/2, P4/2), splitting all Pythagorean intervals.
+'''Decimal''' is an [[exotemperament]] in the [[dicot family]], [[semaphoresmic clan]], and [[jubilismic clan]] of [[regular temperament|temperaments]]. It is a [[weak extension|weak]] [[extension]] of [[dicot]], the [[5-limit]] temperament tempering out [[25/24]], splitting the octave in two parts, each representing [[7/5]][[~]][[10/7]]. It is also the prototypical fully [[hemipyth]] temperament, with [[sqrt(2)]] representing 7/5~10/7, [[sqrt(3)]] representing [[7/4]]~[[12/7]], [[sqrt(3/2)]] representng [[5/4]]~[[6/5]], and [[sqrt(4/3)]] representing [[7/6]]~[[8/7]], with a [[pergen]] of (P8/2, P4/2), splitting all Pythagorean intervals in two.
 More precisely, it is the [[7-limit]] temperament that [[tempering out|tempers out]] both [[25/24]], the classic chromatic semitone, and [[49/48]], the septimal diesis. These two intervals have a rather similar function separating close intervals and creating "major" and "minor" triads (either pental ones splitting the perfect fifth or septimal ones splitting the perfect fourth), and tempering them out allows 5/4~6/5 to be sqrt(3/2) a neutral third and 7/6~8/7 to be a sqrt(4/3) neutral semifourth. These can be equated (far more accurately) to [[11/9]] and [[15/13]] respectively, tempering out [[243/242]] and [[676/675]] and extending this temperament to the [[13-limit]]. Since {{nowrap|(25/24)/(49/48) {{=}} [[50/49]] }}, it also tempers that out, splitting the octave in two equal parts. As both the generator and period are half that of the diatonic scale, this means it forms mos scales of 4, 6, 10, 14, 24, 38, … tones.